In the brain, ScerGAL4Feb15 drives expression in all of the neurons of the G3a, VMI-VMII and a subset of cells in the VMIII. The octopaminergic AL2 cluster, the VMI-VMII ventral clusters and a subset of cells of the VMIII clusters also express Tbh. In the thoracico-abdominal ganglion ScerGAL4Feb15 is detected in a few cells, with a subset of these co-localising with Tbh protein.